As far as I know there are four books out there with information on the Presa Canario. Two of them are exclusive to the breed, the other two deal with several breeds but are worthwhile reading considering the limited amount of printed information out there.

El Presa Canario by Manuel Martin Bethencourt. You can access the online English version here	Pit Bulls and Tenacious Guard Dogs and Gladiator Dogs both by Carl Semencic. You can review them both here

El Perro de Presa Canario: Su Verdadero Origen (The Perro de Presa Canario: It's True Origins) by Manuel Curto Gracia. You can access most of its content here

For those of you new to the breed I'd strongly recommend that you read the breed standard for the Presa Canario, as well as view many photos of correct examples of this breed. You should also be aware that there is some "politics" among the groups who were instrumental in bringing this breed back from extinction. Both sides have their own opinions on certain issues with regards to the true history of the breed and its future. My only advice is to just keep an open mind, appreciate both sides' arguments, and don't arrive at any conclusions before you are certain of the facts.

Furthermore, it is an undeniable truth that a lot of crossbreeding does take place in North America and elsewhere, resulting in dogs of questionable background, health, and temperament. There are many unscrupulous "breeders" out there who prey on the ignorance of those new to this breed, so buyer beware.

If you are interested in owning this breed then educate yourself as much as you can prior to making any commitment. An good place to start is to visit the website of the Presa Canario Club of America, the only official delegation in the US to the CEPRC (the parent club of the breed in Spain). The site answers a lot of beginner questions about the breed and provides other valuable information. Presa breeders and owners who are members of the PCCA are probably a much better source of first-hand information about these dogs as well. The links listed on my site are also useful in gathering further information and pictures on the Presa Canario.

If you have any questions about the breed that you need answered, either e-mail me and I'll answer them as best I can, or I'll point you in the direction of somebody who will. However, I would recommend posting all questions on the message boards as they are frequented by many knowledgeable breeders and owners on a daily basis.